US9264883B2 - Method, apparatus and computer readable medium for terminating and newly constructing a send routing information (SRI) message in mobile networks - Google Patents

Method, apparatus and computer readable medium for terminating and newly constructing a send routing information (SRI) message in mobile networks Download PDF

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US9264883B2
US9264883B2 US14/456,453 US201314456453A US9264883B2 US 9264883 B2 US9264883 B2 US 9264883B2 US 201314456453 A US201314456453 A US 201314456453A US 9264883 B2 US9264883 B2 US 9264883B2
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fresh
message
message controller
routing query
query
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US20150141003A1 (en
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Simon Dumbleton
Jim Plimmer
Ian Birchall
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Markport Ltd
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Markport Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/12—Mobility data transfer between location registers or mobility servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • H04W80/085—Upper layer protocols involving different upper layer protocol versions, e.g. LCS - SUPL or WSN-SOA-WSDP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]

Definitions

  • the invention relates to routing of messages in mobile networks.
  • EP1683375 (Anam Mobile) describes an approach in which routing information requests are intercepted by a node which provides a response with its own address. When it receives the subsequent message it directs value added services to be performed.
  • EP1408705 (Telsis) also describes such an approach. In this case the false addressing is performed by a router and the false address is that of the router itself or a different router.
  • EP1626590 (Telsis Holdings Ltd) describes a router sending an incoming SRI-SM to one of a number of possible HLRs.
  • U.S. Pat. No. 7,751,837 (CVON Innovations Ltd.) describes a method in which a moderator server receives an SRI-SM, and the moderator server generates the routing instructions, to cause the message to be routed to a gateway.
  • One application is archiving of messages.
  • GB2473763 (Oracle) describes a mobile delivery platform intercepting a routing request and determining if the recipient subscriber has subscribed to value added services. If so, the mobile delivery platform generates a response with routing information to route the subsequent message to a message handling component. This reduces traffic to the HLR.
  • FIG. 1 shows a typical scenario for delivery of a message from a device in a network A to a device in a network B.
  • a MOFSM in network A causes an SMSC of this network to forward an SRT-SM to the HLR of the B network.
  • the response provides the address of the serving MSC, to which the MT-FSM is forwarded for delivery to the device B.
  • a problem with this scenario is that network elements change and evolve at different rates.
  • the incoming SRI-SM may not be suitable for gleaning all possible information from the foreign network's (in this case, B) HLR, which could be a HSS or equivalent.
  • the invention addresses this problem. Another object is to achieve additional flexibility in the manner of providing additional to the subscriber.
  • HPLMN Home Public Land Mobile Network
  • IMSI International Mobile Subscriber Identification
  • IP-SM-GW IP Short Message Gateway
  • EPC Evolved Packet Core
  • SGSN Serving GPRS Support Node This node acts as a gateway between the GPRS/3G IP devices and the SS7 world of SMS.
  • Sh-Pull Sh is a Diameter-based interface Pull implies a client is requesting information from the server.
  • SM-RP-PRI Short Message Priority SRI-SM SendRoutingInformationforShortMessage GSM/3GPP MAP operation issued by an SMSC in order to determine where (which network element) to send the message for onward delivery to the recipient.
  • a message controller for a mobile network, the message controller comprising a digital processor and signal ports and being adapted to:
  • the message controller is adapted to extract the MSTSDN or equivalent in the original routing query and to determine what further information could be obtained in addition to what was requested in the original routing query.
  • the additional information is an SGSN address or IP-SM-GW address.
  • the message controller is adapted to cache data and use said cached data to generate the fresh routing query.
  • the message controller is adapted to maintain a register of currently available resource servers, to retrieve information from said resource servers for use in generating the fresh routing query or to determine where the fresh routing query is to be sent.
  • a resource server is a presence server
  • the message controller is adapted to convert an MSISDN to a URI/IM address and to send a fresh routing query to the presence server.
  • the message controller is adapted to send a fresh routing query to a HSS.
  • the fresh routing query is in the Diameter protocol.
  • the message controller is adapted to receive a response to the fresh routing query and to generate a fresh response for the message service centre which sent the original routing query.
  • the fresh response includes data retrieved from a database or from a remote resource server.
  • the fresh response includes a false address to cause the message to be sent to a smart services control node.
  • said node is the message controller or a different network element such as a different message controller.
  • the node is one of a plurality of message controllers which is dynamically selected.
  • the fresh response includes a shared global title for versatile processing and onward routing of the message.
  • the message controller is adapted to send a plurality of fresh routing queries, such as a HSS query followed by a HLR query.
  • the processor is adapted to execute application functions on a sequenced operation layer.
  • the processor is adapted to add or delete application functions, or change their sequence, in a modular manner.
  • the processor is adapted to execute Rule Based Decision Logic programs.
  • the invention provides a method of operation of a message controller for a mobile network, the message controller comprising a digital processor and signal ports, and the method comprising the steps of:
  • the message controller maintains a register of currently available resource servers from which information is retrieved either for generating the fresh routing query or to determine which the fresh routing query is to be sent to.
  • a resource server is a presence server
  • the message controller converts an MSISDN to a URI/IM address and sends a fresh routing query to the presence server.
  • the message controller sends a fresh routing query to a HSS.
  • the fresh routing query is in the Diameter protocol.
  • the message controller receives a response to the fresh routing query and generates a fresh response for the message service centre which sent the original routing query.
  • the fresh response includes data retrieved from a database or from a remote resource server.
  • the fresh response includes a false address to cause the message to be sent to a smart services control node.
  • said node is the message controller or a different network element such as a different message controller.
  • the node is one of a plurality of message controllers which is dynamically selected.
  • the fresh response includes a shared global title for versatile processing and onward routing of the message.
  • the message controller sends a plurality of fresh routing queries, such as a HSS query followed by a HLR query.
  • the message controller exchanges SIP OPTIONS to determine presence and device capabilities.
  • the invention provides a computer readable medium comprising software code adapted to perform the steps of a method as defined above in any embodiment when executing on a digital processor.
  • FIG. 1 is a flow diagram for a routing scenario of the prior art, as described above;
  • FIG. 2 is a block diagram of context of a platform of the invention.
  • FIGS. 3 to 6 are ladder sequence diagrams for routing scenarios of the invention.
  • the invention extends reachability of SMS when subscribers move to other messaging forms or the HPLMN of the recipient is more technically advanced than the HPLMN of the originator, for example, the recipient is available over IP-SM-GW, but the originator cannot support that.
  • an originating SMSC in Network A issues an SRI-SM towards the HLR of a recipient (User B in Network B)
  • one of a number of N Platforms or Message Controllers (“MCOs”) intercepts the SRI-SM. Instead of passing on the SRI-SM, the MCO terminates it and performs a full decode of all fields, specifically extracting the recipient MSISDN from it. The MCO then constructs a new SRI-SM for the same MSISDN, but forcing the new request to ask for all available data, including, but not necessarily limited to visited-MSC address, SGSN address and IP-SM-GW address.
  • the MCO When a response is received the MCO generates a fresh query response for the originating SMSC instead of merely routing on the response which it receives. If the MCO is programmed to provide a false address for smart services it incorporates the false address in the query response which it generates. This avoids need to modify the incoming response and allows considerable additional versatility. For example the MCO may provide a number of false addresses, depending on how it generates the query response.
  • the false address which it provides may be its own address, or that of another MCO, in FIG. 2 the nth MCO.
  • the MCO architecture is such that the Sequenced Operation Layer (SOL) co-ordinates the activities of multiple functional building blocks. These independent building blocks are named application functions (AFs) and each AF provides an element of functionality isolated from other functions within the MCO. By adding new AFs and/or re-ordering the sequence of AFs, the MCO can deliver new capabilities much faster than with legacy architecture.
  • SOL Sequenced Operation Layer
  • An incoming SS7 PDU is decoded and handed off to the SOL for processing, where is passes through a coordinated sequence of AFs.
  • AFs can manipulate any or all of the parameters involved in the operation including sending it on to a final destination (which may be an alternative destination to the one originally intended).
  • the AFs could generate a response back to the originator of the incoming SS7 PDU. This response could be either a negative response (including reason code) or a positive response including cached or generated success criteria.
  • a message processed by the MCO consists of a number of attributes.
  • the MCO allows customization and addition of customer-specific attributes, for example any subscriber attribute stored in an LDAP database can be added into a message and used as any other attribute in the MCO logic, such as for billing or routing.
  • RBDL Rule Based Decision Logic
  • the MCO when the MCO receives an SRI-SM it terminates it, disassembles it, and performs processing in order to generate a new SRI-SM.
  • This is in contrast to the prior approach of EP1683375 (in which the inbound HLR query is merely routed on to the HLR).
  • the MCO can dynamically decide where to send the new query and how this new query should be configured for optimum information gathering.
  • the new query is sent to a HLR.
  • the MCO When the response is received the MCO generates a fresh SRT-SM-Resp for the originating SMSC.
  • the SM-RP-PRT can be interpreted by the MCO to determine whether locally-cached information in the MCO can be used or, if priority is requested, then external queries can be performed.
  • Another option is to always set the SM-RP-PRI flag in any outbound SRI-SM from the MCO to ensure that its cache is up-to-date.
  • the MCO can query alternative sources for availability, such as a presence server (by converting the MSISDN to an appropriate URI/IM address), or by querying an HSS over Diameter (Sh)). Such queries can be used to formulate the new query.
  • a presence server by converting the MSISDN to an appropriate URI/IM address
  • HSS over Diameter Sh
  • Such queries can be used to formulate the new query.
  • the MCO can then respond to the original SRI-SM request giving the IMSI (if available, otherwise a false IMSI) plus the address of the MCO as the visited MSC address. If the recipient is flagged as not available, the operator may choose to buffer all messages locally to enable optimized conversion to alternative technologies.
  • An alternative to this is to use a local “presentation Global Title” as the address for the visited MSC address, such that the subsequent MT-FSM can be received by a plurality of nodes.
  • the nodes share a distributed cache of information regarding the availability of the recipient, thus providing continuous service in the event of a node failure. This allows much more flexibility than the prior approach of the node which provides the false address giving its own address as the false address.
  • HLR query includes the option to deploy the MCO in an EPC network and to use the Diameter interface to query the HSS or Presence Server instead of, or in addition to, the generation of an SRI-SM.
  • the MCO determines the optimal (from a subscriber experience perspective) technology and address for the onward delivery of the message(s).
  • TP-SM-GW delivery will be more attractive and higher priority.
  • a query to the HLR may not be required at all.
  • the mechanisms and protocols used for querying the HSS are also much less resource intensive than the SS7-based interactions needed for HLR interrogation, therefore providing further optimisation to the message delivery process.
  • the node can distribute its cache information across a cluster, therefore providing higher availability than a standalone platform. Therefore a subsequent MT-FSM can be received at any node in the cluster rather than having to be directed to the specific node which responded to the SRI-SM.
  • the new SRI-SM is sent to the HLR.
  • the MCO decides according to RBDL to send the MT on to the IP-SM-GW in this example.
  • the MCO directs a new SRI-SM to a HLR, and a Sh-Pull message to a HSS.
  • This diagram illustrates consolidation of the responses to provide an SRI-SM-Resp to the originating SMC. There is then message delivery via an IP-SM-GW.
  • an MCO processes the incoming SRI-SM, and then sends an Sh-Pull message to a HSS.
  • the Sh-Pull Resp is used by the MCO to generate an SRI-SM-Resp for the originating SMSC.
  • the MT-FSM is sent to an IP-SM-GW.
  • the MCO generates an LDAP query, receives the LDAP server response and interprets it to determine if the HSS should be used. If so, an Sh-Pull is sent to the HSS, and its response is received and interpreted. If either response has indicated that the MCO should query the HLR, a new SRI-SM is generated and sent to the HLR. Using all responses, the MCO now generates a full SRI-SM-resp for the originating SMSC. The address given in this is the MCO's address, and so the MT-FSM is subsequently received, and is processed by the MCO to determine a delivery route, in this case to an IP-SM-GW and the terminating MSC.
  • the invention provides for optimal handling of routing queries, both in terms of making routing information available and in terms of where the subsequent message is routed. It allows excellent versatility as it enables the full functionality of a more advanced network to be availed of even if a message service centre of an originating network is of older technology.
  • SIP OPTIONS messages are exchanged to determine presence and device capabilities.
  • SIP OPTIONS requests can be generated by a message controller to determine if the recipient of a message is available for message delivery over RCS-e.
  • An alternative to SIP OPTIONS is to leverage third party registration details from IMS registration of an RCS subscriber; in this case the Message Controller would query a third party registration database for availability/presence information.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
US14/456,453 2012-03-02 2013-02-20 Method, apparatus and computer readable medium for terminating and newly constructing a send routing information (SRI) message in mobile networks Active US9264883B2 (en)

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US14/456,453 US9264883B2 (en) 2012-03-02 2013-02-20 Method, apparatus and computer readable medium for terminating and newly constructing a send routing information (SRI) message in mobile networks
PCT/EP2013/053338 WO2013127667A1 (en) 2012-03-02 2013-02-20 Method, apparatus and computer readable medium for terminating and newly constructing a send routing information (sri) message in mobile networks

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GB2534426B (en) * 2015-01-26 2018-01-03 Vodafone Ip Licensing Ltd Telecommunications routing system
US9565528B2 (en) * 2015-04-08 2017-02-07 Verizon Patent And Licensing Inc. Providing a message based on translating a beacon identifier to a virtual beacon identifier
US10594756B2 (en) * 2017-08-22 2020-03-17 T-Mobile Usa, Inc. Network configuration using dynamic voice codec and feature offering

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US20150141003A1 (en) 2015-05-21
HRP20171344T1 (hr) 2018-02-09
WO2013127667A1 (en) 2013-09-06
EP2820870A1 (de) 2015-01-07
ES2639477T3 (es) 2017-10-26
EP2820870B1 (de) 2017-06-07

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